Harrow



No. 807,278. Patented July l2, |898. A. v. BYDEB.

H AR B w.

(Application filed' May 24, 1897.)

(No Model.) f

y HMI-- f l L v/f/ 7,/

@Mmmm 1M/vmbo@ anw W. @(08.8 97. Ow/710mb.

@Hom/w13 Nrrnn STATES ATENT Fries,

ANDREIV V. RYDER, OF SOIO, OHIO.

HARRow.

SPECIFICATION forming part of Letters Patent No. 607,278, dated July 12,1898.

Application filed May 24, 1897. Serial No. 637,843. (No model.)

T0 all whom zit may concern:

Be it known that I, ANDREW V. RYDER, a citizen of the United States,residing' at Scio, in the county of IIarrison and State of Ohio, haveinvented certain new and useful Impi'ovements in Harrows, .of which lthefollowing is a specification, reference being had therein to theaccompanying drawings.

Myinvention relates to certain new and useful improvements in harrows ofthat class wherein mechanism is employed for raising and lowering theharrow-frame, so as to adjust the teeth to, into, and above and out ofthe ground.Y

The leading object of my invention is to provide a harrow in which bythe operation of a single hand-lever lifting and supporting wheels aremanipulated at one end, and the frame of the harrow is manipulated atthe other end relatively to the supporting-wheel at that end, so that bysuch manipulation the altitude of the harrow-frame may be varied asdesired, so that the wei ght will come wholly upon such wheels orpartially upon them and partially upon the teeth or wholly upon theteeth, all as hereinafter more fully described, and particularly pointedout in the claim.

In the accompanying drawings, on which like reference-letters indicatecorresponding parts, Figure 1 is a side elevation of my improved harrow,and Fig. 2 a plan view of the same.

The letter A designates bars, preferably of metal, which constitute theframe of my harrow. In the present form of machine I have convergedthese bars at one end and secured them to a casting B and at the otherend secured them to bearings O. In the casting B, I have mounted theshank D of the wheelbarsF. of a caster-wheel F, which carries theforward end of the frame. In the bearings C is mounted an arched axle G,on the outer ends of which are mounted supporting and carrying wheels H,and to this axle is secured a hand-lever I, by which the axle ispartially rotated when the lever is swung back and forth, throwing thearched portions J into more or less of an inclined position or even to avertical position, so as to raise or lower that end of the frame. Thislever is pivoted to a long pitnian-baiK,wl1ich carries a toothed segmentL, adapted to be engaged by a detent device M, carried by the lever I,so that the lever can be locked in different positions. a

The forward end of the pitman-bar K is pivoted to one arm of a lever O,pivoted at P in the casting-B and provided at the other end withv teethQ, which engage with a series of spaced bands or collars R on the shankD, so that when the lever O is manipulated its teeth will engage withthese bands R and lift or lower the casting B to different )ositions onv the shank, and thus vary the height of the forward end of theharrow-frame.

Thus it will be seen that by the manipulation of the single hand-lever Iboth ends of the harrow-frame are raised or lowered, and the teeth,spring-teeth in the instance illustrated, (shown at S,) will be liftedfrom the ground either enough to clear it or enough to make them runshallower, or will be let down into or upon the ground enough to makethem run deep and, if desired, to sustain the whole weight of the frameand their own weight. The dotted and full line positions shown in Fig. lindicate the extreme adjustments. This organization and construction aresimple and cheaply made and are very efficient in action. It will beseen that as the bands or collars R are circu mferential they will stillengage with the teeth Q of the lever O notwithstanding the differentpositions to which the casterwheel may be swung.

Having thus fully described my invention, what I 'claim'as new, anddesire to secure by Letters Patent, isk

In a harrow, the combination with a frame and its teeth, an arched axlein its rear end and having wheels, a hand-lever secured to said axle, aforward extension to said frame, a lever pivoted in said extension,caster-wheel bars carrying a caster-wheel and having a shank, saidsha-nk being behind said extension and having circular bands projectingtherefrom and engaging with said toothed lever, a pitman pivoted to saidtoothed lever and to said hand-lever, a toothed segment carried by saidpitman, and a detent on the hand-lever to engage with said toothedsegment, whereby the harrow is held in adjusted positions.'

In testimony whereof I affix my signature in presence of two witnesses.

ANDREW? V. RYDER.

ITitnesses:

Gnoncn 1l. Wirnnr, CHAS. SANDMEISTER.

IOO

